ASoC: msm: update platform driver to handle new SSR design. 4

Update PCM platform driver to handle the reset events during
SSR and also unblock the write wait according to
the new SSR design

Change-Id: Id0b4950ffc0eb130dbfdce36375629a683752044
CRs-Fixed: 661491
Signed-off-by: Santosh Mardi <gsantosh@codeaurora.org>

https://github.com/xboxfanj/android_kernel_htc_msm8974/commit/a09fe5223b4c82e5ec9309dedd2ff6dccee275f7#diff-3